These
people lived from about 200,000 years ago, until they disappeared
about 30,000 years ago. We don't know if they could speak as we
can. Neanderthal fossils have been found all over Europe and Asia.
They were shorter than modern humans (homo sapiens)- that's us!

Our species seems to have evolved about 500,000 years ago in Africa.

Neanderthals had low, sloping foreheads, large noses and faces,
and receding chins. They were squat and strongly muscled. Neanderthals
wore clothes, made simple tools, and buried their dead. They discovered
how to make fire and ate various foods, but relied quite a lot on
meat.

However they didn't, as far as we know, have bows and arrows (which
are in the game), or mobile phones (which aren't).

Some scientists think the Neanderthals were a separate species from
ours, and that competition with the homo sapiens lead to their becoming
extinct. There have been no Neanderthal bones found in Australia.

Here are some great sites about Neanderthals, early human species
and human evolution: